EPS钢板切换热轧带钢生产应用技术研究

Application Research on the Production Technology of EPS Plate Switching Hot Rolled Strip Steel

为了解决目前梁类零部件生产所用热轧带钢存在的氧化皮掉落造成设备停机、污染环境等问题,以EPS钢板的转产切换为主要研究对象,采用试验验证以及现地现物解决问题的方式,分析了热轧带钢氧化皮在辊压过程中掉落的原因,分析了绿色清洁表面处理技术(EPS)钢板表面质量高、零件成形后不需要抛丸的技术优势,提出了EPS材料的技术要求:钢板屈服强度为530~560MPa,抗拉强度为600~630MPa,断后伸长率≥22%,同时需要满足冷弯性能要求;经过EPS处理后的表面平均粗糙度Ra≤5.0μm。最终促成了EPS钢板转产切换。

In order to solve the problems of equipment shutdown and environmental pollution caused by the falling of the oxide scale of the hot-rolled strip used in the production of beam parts,this paper took the conversion and switching of EPS steel plate as the main research object,analyzed the causes for the falling of hot-rolled strip oxide scale during the rolling process by means of test verification and genchi genbutsu,analyzed the technical advantages of high surface quality of EPS steel plate and no need for shot blasting after the parts were formed.The paper proposed technical requirements of EPS materials:the yield strength of the steel plate is 530 MPa~560 MPa,the tensile strength is 600 MPa~630 MPa,the elongation after breaking is≥22%,and the cold bending performance requirements need to be met.The average surface roughness Ra≤5.0μm after EPS treatment.Finally,it led to the switch of EPS steel plate production.